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110 2nd Avenue South,;#D7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical, nc. Telephone 925-798-1620 Fax 925 798 1622 <br /> I <br /> Website www mccampbell com E-snail mamQmecampbell coin <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br />' Matrix A WorkOrder 0406370 <br />' EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 12073 Spiked Sample 1D NIA <br /> Sample Spiked MS' MSD" MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria (%) <br /> pglL pg1L % Rec % R=/. RPD % Rec %Rec %RPD Low High <br />' TPH(btex)£ NIA 60 NIA NIA NIA 967 961 0 669 70 130 <br /> MTBE NIA 10 NIA NIA NIA 108 106 185 70 130 <br />' Benzene NIA 10 NIA NIA N/A 109 107 1 10 70 130 <br /> Toluene NIA j 10 NIA NIA NIA 103 102 1 36F70 <br /> 130 <br />' Ethylbenzene NIA 10 NIA NIA N/A 107 107 0 130 <br /> XylenesNIA 30 NIA N1A NIA 95 95 0 130 <br />' %SS NIA 10 NIA NIA N/A 105 104 144 70 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br />' NON;; <br /> 1 <br /> MS=Matnx Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample,LCSD=laboratory Control Sample Duplicate RPD=Relabve Percent <br /> Deviation <br /> %Recovery=loo'(MS-Sample)l(Amount Spiked) RPD=100'(MS- MSD)/((MS+MSD)12) <br /> MS and 1 or MSD spike recovenos may not be near 100%or the RPOs near 0%if a)the sample is inhomogenous AND contains significant conoentrations of <br /> analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> E TPH(bte)o=sum of BTEX areas from the FID <br /> ' #cluttered chromatogram sample peak coelutes with surrogate peak <br /> . NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br /> ' DHS Certification No 1644 QA/QC Officer <br />